66258262903 has 6 divisors (see below), whose sum is σ = 77075938536. Its totient is φ = 56792796732.

The previous prime is 66258262883. The next prime is 66258262907. The reversal of 66258262903 is 30926285266.

It is not a de Polignac number, because 66258262903 - 2²⁹ = 65721391991 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49), and also a Moran number because the ratio is a prime number: 1352209447 = 66258262903 / (6 + 6 + 2 + 5 + 8 + 2 + 6 + 2 + 9 + 0 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66258262907) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 676104675 + ... + 676104772.

It is an arithmetic number, because the mean of its divisors is an integer number (12845989756).

Almost surely, 2^66258262903 is an apocalyptic number.

66258262903 is a deficient number, since it is larger than the sum of its proper divisors (10817675633).

66258262903 is a wasteful number, since it uses less digits than its factorization.

66258262903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1352209461 (or 1352209454 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 49.

The spelling of 66258262903 in words is "sixty-six billion, two hundred fifty-eight million, two hundred sixty-two thousand, nine hundred three".